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How to root XT925 on Jelly Bean OTA (4.1.2) ?

Hi!
I did a Factory Reset after the JB OTA and lost root. Any easy known way to reroot de device?
XT925 (GSM)

Just checked, the su binary is still there, but when I type su in the terminal emulator I get Permission denied.
None of the root apps are working.
Any way to fix this?

Same situation here.
waiting for a smart guy!

try
chmod 777 su
su

extide said:
try
chmod 777 su
su
Click to expand...
Click to collapse
This doesn't work because you need root to change the file permissions.
After a lot of flashing and reflashing, bricking and unbricking the phone, I managed to get Jelly Bean with root.
What finally worked:
-> Used matt's tool to restore phone to ICS
-> Made factory reset and hard factory reset (from recovery menu)
-> Flashed Brazil Retail ROM
-> Used matt's tool to root
-> Installed OTA Rootkeeper, made su backup and unrooted.
-> Applied JB OTA
-> Restored backup in OTA Rootkeeper

steiger said:
This doesn't work because you need root to change the file permissions.
After a lot of flashing and reflashing, bricking and unbricking the phone, I managed to get Jelly Bean with root.
What finally worked:
-> Used matt's tool to restore phone to ICS
-> Made factory reset and hard factory reset (from recovery menu)
-> Flashed Brazil Retail ROM
-> Used matt's tool to root
-> Installed OTA Rootkeeper, made su backup and unrooted.
-> Applied JB OTA
-> Restored backup in OTA Rootkeeper
Click to expand...
Click to collapse
You have use the utility droid from matt normally for the xt926 ? What phone you have the xt925 or 926

o2qc418 said:
You have use the utility droid from matt normally for the xt926 ? What phone you have the xt925 or 926
Click to expand...
Click to collapse
No! I have the XT925 (GSM version). I don't know if it would work on XT926.

steiger said:
No! I have the XT925 (GSM version). I don't know if it would work on XT926.
Click to expand...
Click to collapse
thanks for your help ...tried and now all working !

o2qc418 said:
thanks for your help ...tried and now all working !
Click to expand...
Click to collapse
Hi could you direct me to Matt's tool that allows to revert an xt925 to ics please, I can't seem to find a version that works for my xt925.
Thanks.

What provider are you with?
steiger said:
This doesn't work because you need root to change the file permissions.
After a lot of flashing and reflashing, bricking and unbricking the phone, I managed to get Jelly Bean with root.
What finally worked:
-> Used matt's tool to restore phone to ICS
-> Made factory reset and hard factory reset (from recovery menu)
-> Flashed Brazil Retail ROM
-> Used matt's tool to root
-> Installed OTA Rootkeeper, made su backup and unrooted.
-> Applied JB OTA
-> Restored backup in OTA Rootkeeper
Click to expand...
Click to collapse

But do I need to unlock the boot loader? I have this situation, but my bootloader is locked... Can I use this method in my situation? Thanks in advance...
EDIT: I solved it. I could just flash ICS 4.0.4 back after the OTA upgrade! Nice!!!
Sent from my RAZR HD using xda app-developers app

steiger said:
This doesn't work because you need root to change the file permissions.
After a lot of flashing and reflashing, bricking and unbricking the phone, I managed to get Jelly Bean with root.
What finally worked:
-> Used matt's tool to restore phone to ICS
-> Made factory reset and hard factory reset (from recovery menu)
-> Flashed Brazil Retail ROM
-> Used matt's tool to root
-> Installed OTA Rootkeeper, made su backup and unrooted.
-> Applied JB OTA
-> Restored backup in OTA Rootkeeper
Click to expand...
Click to collapse
Can you provide the link to Matt's tool? I'm not sure which one to get and some of them say not to be used with XT925. Also where did you get the Brazil Retail Rom?

zilian28 said:
But do I need to unlock the boot loader? I have this situation, but my bootloader is locked... Can I use this method in my situation? Thanks in advance...
EDIT: I solved it. I could just flash ICS 4.0.4 back after the OTA upgrade! Nice!!!
Sent from my RAZR HD using xda app-developers app
Click to expand...
Click to collapse
Did you unlock your boot loader or were you able to flash without unlocking the boot loader? How did you flash back?

ynk3 said:
Did you unlock your boot loader or were you able to flash without unlocking the boot loader? How did you flash back?
Click to expand...
Click to collapse
I didnt need to unlock bootloader. Mine is locked until today. I downloaded the firmware ics retail brazil and flashed using rsd. Very simple, indeed. To try another roms, you can install safestrap and then you dont need to unlock your bootloader. =)

Get Root on JB 4.1.2
I get it from another thread no credits to me.
IF You have CWM use the attached file to get ROOT access to JB 4.1.2

If the SU binary is still there...
steiger said:
Just checked, the su binary is still there, but when I type su in the terminal emulator I get Permission denied.
None of the root apps are working.
Any way to fix this?
Click to expand...
Click to collapse
Some forum members tried to keep root through the OTA update and used the OTARootKeeper which didn't work all the time as intended. Some of use were sort of 1/2 re-rooted with the SU binary on the system but no root.
I found that Matt's Root restore script finished the process and got back root. This is NOT Matt's utility, but a separate script, just for recovering root.
You can find a link to it in the post I made in a different thread. http://forum.xda-developers.com/showpost.php?p=37656547&postcount=136
I have not unlocked my boot loader and using the CWM method of rooting requires that. I wasn't ready to void my warranty nor was I willing to give up trying to get root back.
Give it a try and let me know if it works for you.

steiger said:
No! I have the XT925 (GSM version). I don't know if it would work on XT926.
Click to expand...
Click to collapse
Yes - sort of, it will work
I have a 925 (UK) running 4.1.2, which had the tether issue.
So,
I unlocked bootloader
ran the Matts tool to revert back to ICS ( yes it is a verizon tool.)
this reinstalled ICS, however it also broke the modem, so I had no signal / red triangle
then used another tool, whilst in fastboot mode, to install a French Vodafone rom, and did the OTA
to 4.1.2
now my tether works -though no root.

surfnsnack said:
Yes - sort of, it will work
I have a 925 (UK) running 4.1.2, which had the tether issue.
So,
I unlocked bootloader
ran the Matts tool to revert back to ICS ( yes it is a verizon tool.)
this reinstalled ICS, however it also broke the modem, so I had no signal / red triangle
then used another tool, whilst in fastboot mode, to install a French Vodafone rom, and did the OTA
to 4.1.2
now my tether works -though no root.
Click to expand...
Click to collapse
To get root :
http://forum.xda-developers.com/showpost.php?p=36345060&postcount=1
Flash CWM and and Flash SuperSU Via CWM

+1 for that , all work as intended
o2qc418 said:
To get root :
http://forum.xda-developers.com/showpost.php?p=36345060&postcount=1
Flash CWM and and Flash SuperSU Via CWM
Click to expand...
Click to collapse

Don't loose root after OTA 4.1.2 JB
To all of you who loose root and stay 'half' rooted after OTA, it's because you are missing a small detail.
1. Right after you root, go to play store and update tour super su APP.
2. After you update the super user APP, open it and update it's binaries. Only after these 2 updates you can install rootkeeper and backup the root and then unroot.
3. Finally, accept the OTA and after JB is installed you open rootkeeper and restore root.
Cheers!

Lost root access after firmware

Hello guys,
I have an ASUS TF700T running ICS. I used motochopper to root it successfully.
Yesterday, I upgraded the firmware when prompted and lost root access; SuperSu app is still there but show an error when I run it because no more root.
I tried to run motochopper again but still I can't get root.
Can someone please help me step by step how I can restore root access? Do i have to update ROM?
Thanks.

androidofan said:
Hello guys,
I have an ASUS TF700T running ICS. I used motochopper to root it successfully.
Yesterday, I upgraded the firmware when prompted and lost root access; SuperSu app is still there but show an error when I run it because no more root.
I tried to run motochopper again but still I can't get root.
Can someone please help me step by step how I can restore root access? Do i have to update ROM?
Thanks.
Click to expand...
Click to collapse
upgrading removes root, always, your su executable will still be there but not usable as when rooted.
for this there is a nice app called OTA RootKeeper, which you should install right after rooting, and which lets you make a backup of your root, so that you can temp-unroot when upgrading and restore root when you finished.
you'll have to get rooted again, how, i guess will depend on what version you got upgraded to.

androidofan said:
Hello guys,
I have an ASUS TF700T running ICS. I used motochopper to root it successfully.
Yesterday, I upgraded the firmware when prompted and lost root access; SuperSu app is still there but show an error when I run it because no more root.
I tried to run motochopper again but still I can't get root.
Can someone please help me step by step how I can restore root access? Do i have to update ROM?
Thanks.
Click to expand...
Click to collapse
If you upgraded to 10.6.1.14.10 you're out of luck with Motochopper. Asus seems to have plugged the hole that exploit used. Check your firmware version under About Tablet > Build Number
You can downgrade to 10.6.1.14.8, root with Motochopper and then use OTA Rootkeeper as described above.
Dwnld the .8 firmware for your SKU from the Asus Support Downloads site, unzip the file once (resulting in another zip), put that zip into the root of your internal storage, reboot and you should get a notification to downgrade.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

Thanks for your help.
I still have problem. I unzipped the file and get another zip jb-mr1-t30-r1-10.6.1.14-10.6.1.14.8-20130514-1751-foss.tar.gz. I copied it into the root of the sd internal storage, but no pop-up window showed-up telling me there is an update , I rebooted the device with no notification and I even tried a cold boot with no sucess.
Is there something i do wrong?

Will all the data be lost when performing a firmware downgrade from .10 to .8 ?

androidofan said:
Will all the data be lost when performing a firmware downgrade from .10 to .8 ?
Click to expand...
Click to collapse
Yes, I just had to do that. Make sure you have a good Titanium backup or similar. Also, backup any other things like pictures and etc.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

androidofan said:
I still have problem. I unzipped the file and get another zip jb-mr1-t30-r1-10.6.1.14-10.6.1.14.8-20130514-1751-foss.tar.gz. I copied it into the root of the sd internal storage, but no pop-up window showed-up telling me there is an update , I rebooted the device with no notification and I even tried a cold boot with no sucess.
Is there something i do wrong?
Click to expand...
Click to collapse
You need to download the firmware, not the source code. Also make sure you get the correct firmware for your SKU (WW, US, etc.).

I made a mistake I downloaded source code instead of firmware, my bad.
Well I think I will give up to try to get back my root access, that too much risk to downgrade and lost all my data. I hope a new motochopper version will implement another exploit to fix that!

androidofan said:
I made a mistake I downloaded source code instead of firmware, my bad.
Well I think I will give up to try to get back my root access, that too much risk to downgrade and lost all my data. I hope a new motochopper version will implement another exploit to fix that!
Click to expand...
Click to collapse
MotoChopper wasn't designed for the TF700T, it was just pure luck that it worked so i don't think that a new version will be out soon, but maybe we will be lucky enough to get some other tool which can root the new firmware... time will tell.

Installed stock rom but Motochopper said root already exists...

As I mentioned, I rooted my tf700t and installed stock non-rooted 4.2.1 JB rom from Asus' site. But now I need to root the device again. I tried to do this with Motochopper but it said that root is already exists in my device.
How can I handle with this ?
Thank you from now for all response.

serkobe said:
As I mentioned, I rooted my tf700t and installed stock non-rooted 4.2.1 JB rom from Asus' site. But now I need to root the device again. I tried to do this with Motochopper but it said that root is already exists in my device.
How can I handle with this ?
Thank you from now for all response.
Click to expand...
Click to collapse
Motochopper can't root the latest .10 update. I think you can go to .8, root with motochopper and then use voodoo ota rootkeeper to keep root via ota update.

sbdags said:
Motochopper can't root the latest .10 update. I think you can go to .8, root with motochopper and then use voodoo ota rootkeeper to keep root via ota update.
Click to expand...
Click to collapse
Cannot understand clearly.. Could you explain more please what the ".10" is and about ota rootkeeper?

serkobe said:
Cannot understand clearly.. Could you explain more please what the ".10" is and about ota rootkeeper?
Click to expand...
Click to collapse
sbdags meant the 10.6.1.14.10 firmware. Motochopper only worked up to 10.6.1.14.8.
One way to get root on .10 is to downgrade to .8, root with Motochopper, use Voodoo Rootkeeper to backup your root and then let the tablet upate to the latest .10 firmware by accepting the OTA update from Asus (which you should get by checking for system updates from Settings), then restore root with Voodoo Rootkeeper.
A little easier is to use Kingo Android Root. It will root the .10 firmware, but it only works on Windows I think.

berndblb said:
sbdags meant the 10.6.1.14.10 firmware. Motochopper only worked up to 10.6.1.14.8.
One way to get root on .10 is to downgrade to .8, root with Motochopper, use Voodoo Rootkeeper to backup your root and then let the tablet upate to the latest .10 firmware by accepting the OTA update from Asus (which you should get by checking for system updates from Settings), then restore root with Voodoo Rootkeeper.
A little easier is to use Kingo Android Root. It will root the .10 firmware, but it only works on Windows I think.
Click to expand...
Click to collapse
I'll try very soon. Thank you a lot

Towelroot & 4.4.2 kit Kat update

So this is what I am running into.
Updated to 4.3 and used Towelroot to gain root access, now when I try OTA update to 4.4..2 it wont install.
I have tried downloading the 4.3 firmware to Odin back to an unrooted 4.3. For some reason 7 zip wont recognize either 4.3 Firmware from the other thread.
Does anyone have any ideas as to how to get back to an unrooted 4.3 so that I can get the 4.4 update?
Thanks

You can unroot with SuperSU.

troutbeck27 said:
So this is what I am running into.
Updated to 4.3 and used Towelroot to gain root access, now when I try OTA update to 4.4..2 it wont install.
I have tried downloading the 4.3 firmware to Odin back to an unrooted 4.3. For some reason 7 zip wont recognize either 4.3 Firmware from the other thread.
Does anyone have any ideas as to how to get back to an unrooted 4.3 so that I can get the 4.4 update?
Thanks
Click to expand...
Click to collapse
Why you need to Odin back to 4.3, just Odin with 4.4.2 then use towelroot to root.

kidruk said:
You can unroot with SuperSU.
Click to expand...
Click to collapse
What SuperSU app? The actual SuperSU? I have that, is that the option of "Full Unroot"?
You sure that will do the trick?

troutbeck27 said:
What SuperSU app? The actual SuperSU? I have that, is that the option of "Full Unroot"?
You sure that will do the trick?
Click to expand...
Click to collapse
I've done it twice. Its a full unroot.

Re-root
kidruk said:
I've done it twice. Its a full unroot.
Click to expand...
Click to collapse
Then how do root again
A. From SuperSU
B. Or do you have run the whole "towelroot steps again"?
With towelroot, do you always have to uroot for ant OTA's?
Thanks...

PipoM9Pro said:
Then how do root again
A. From SuperSU
B. Or do you have run the whole "towelroot steps again"?
With towelroot, do you always have to uroot for ant OTA's?
Thanks...
Click to expand...
Click to collapse
Im having the same problem. I tried to FDR phone and I am still rooted. Ota for kit kat keeps coming up and I cannot unroot or fdr. Never had a phone that wont unroot or take ota. No bloatware was deleted or froze. Odd.

[Q] Will I keep root after OTA?

I just got my Shield Tablet and rooted it. I keep getting two OTA notifications, one says ROM Update the other says Tegra Update. Will I keep root of I do the OTA updates?
I'd like to get a recovery added, but it seems that all the recoveries are incomplete. Is there a method to install recovery without a separate computer?

DFA1 said:
I just got my Shield Tablet and rooted it. I keep getting two OTA notifications, one says ROM Update the other says Tegra Update. Will I keep root of I do the OTA updates?
I'd like to get a recovery added, but it seems that all the recoveries are incomplete. Is there a method to install recovery without a separate computer?
Click to expand...
Click to collapse
You can try the paid version of SuperSU to preserve root or the THT Rootkeeper (the other big root keeper doesn't work past 4.2) If you update the device to the official OTA, you will need a PC to reflash the recovery but you will not need to unlock the bootloader again.

NapalmDawn said:
You can try the paid version of SuperSU to preserve root or the THT Rootkeeper (the other big root keeper doesn't work past 4.2) If you update the device to the official OTA, you will need a PC to reflash the recovery but you will not need to unlock the bootloader again.
Click to expand...
Click to collapse
yup, lost root but it's okay, lollipop was awful so unlocked, reflashed previous ota, rerooted. Thanks